"John Fields" <jfields@xxxxxxxxxxxxxxxxxxxxx> wrote in message
> On Fri, 07 Apr 2006 21:51:13 -0700, Jamie
> <jamie_ka1lpa_not_valid_after_ka1lpa_@xxxxxxxxxxx> wrote:
> >ptw wrote:
> >> Eric R Snow wrote:
> >>> If a
> >>> switch is used in the speaker wires will it harm the radio to have the
> >>> speakers connected and disconnected when the radio is playing?
> >> Should not have any problem disconnecting the (analog) speaker wires
> >> because it decreases the load. Do not short them though. I did that to
> >> my home stereo and nothing bad happened.
> >not a good idea for the outputs when lets say it
> >gets reconnected at the wrong time while engergy
> >is still generated on the output.
> That's not true. For a solid state amplifier with no output
> transformer, regardless of where the output voltage may lie,
> connecting the load will only let whatever current its [the load's]
> resistance will allow out of the amplifier's output.
> Since the output stage of the amplifier is essentially a voltage
> source, its output voltage won't change whether there's a load
> connected to it or not, within the limits designed into the amp, of
> John Fields
> Professional Circuit Designer